Two CRPF troopers were killed after their vehicle was blown up in a blast triggered by Maoists in Chhattisgarh's Bijapur district on Tuesday, an official said.

The incident occurred at 8am when a Tata 407 carrying food for the troops was hit by an IED blast in Basaguda area of the district, said Ram Niwas, Central Reserve Police Force additional director-general, Naxal operations.

Basaguda is around 520 km from state capital Raipur.

Niwas said the troopers belonged to the CRPF's anti-Maoist CoBRA battalion.

On Monday, Maoist guerrillas had blown up an anti-landmine vehicle in Bastar region, killing a CRPF trooper and injuring five others, police officials said.